Recently,the World Health Organization raised its warning about the new H1N1 virus to its highest level.

VOA: special.2009.07.14

The researchers said those with the highest level of cortisol were five times more likely to die from cardiovascular causes than those with the lowest levels.

VOA: special.2010.10.12

Unemployment in the 27-member EU is expected to reach 11.5 percent by 2010 - the highest level since World War II.

VOA: standard.2009.05.04

In fact,U.S.and NATO military commanders say insurgent violence rose nearly 60 percent between the first six months of this year, compared to last year the highest level of violence since 2001 when the Taliban government was ousted by US.led forces.

VOA: standard.2009.06.15

A spokesman for North Melbourne said the teenager, who is 194 centimeters tall and is still growing, had "enormous potential" to succeed at the highest level of the Australian Rules Football League, a nationwide organization with 16 professional teams.

VOA: standard.2009.12.17